Archive > Flight Simulation

Navigaton help anyone

(1/3) > >>

EHM-2127 Andrew:
A nice easy question.

How does one fly  to way points after flying out bound on a leg from a VOR

Example
DJL (VOR)  (hdg) 118 > TUNOR (hdg) 316 > LAULY (hdg) 315 > BRY (VOR) (hdg) 315 > CLM (VOR) (hdg) 340 > UTELA (hdg) 333 > KOPOR (hdg) 333 > ABUDA (hdg) 328 > DIMAL (hdg) 330 > ALESO (hdg) 316 > TIGER (hdg)319 > BIG (VOR)

Without out useing auto pilot or fsnav gps or any other way to  find where you are.

The first  part was easy but i  have never worked out  how to  get to the other VOR's and even be close to the course i  need.

I  have read a lot of info on the net but they  never give a good way to  nav just with compass, and radio nav equipment apart from VOR to  VOR  ( easy )

I try to stay away  from autopilot  for the most  part unles i find a plane that I  have to  much  hassle trimming or hit really  bad cross winds.

Any  help  will be well used .

EHM-1651 Christian:
Well if you wan't to fly that route without the autopilot you must calculate the true heading you must fly to each point and, also calculate the flying time also taking winds into consideration otherwise you will be in need to use the autopilot.
You will need the neroute charts to do this.

EHM-2029 Sotiris:
Hello Andrew,

as Christian rightfully said, if you don't want to use navigational instruments than you'll be flying almost in VFR rules.

Regarding the intersections: Intersections are usually where airways meet. Airways are typically defined by VOR beacons and a specific radial. So, even with the two VOR's you can still make it to an intersection.
Select the VOR frequency of each Airway into each of your instruments and choose the correct course of each one. Then, when the two VOR's are centered, it marks the point where the airways meet and hence your intersection.

Another easy way is to navigate from NDB to NDB. NDB's do not have radials and as such the arrow just points you towards them. Once over an NDB the arrow will change direction 180 degrees at which point you can select the next NDB's frequency, and do this until you reach your destantion.
NDB's have far greater range than VOR's as they are able to follow the curvature of the earth.

If you insist on flying just with compass and chronometer then you'll need a detailed chart like the VFR chart below.



From there, you calculate your route marking correct heading and distances. Then, as you fly you take your speed and calculate how much time it will take you to reach your next turn point.
However, as the headings, distances/times and wind effects tend to alter your route slightly you must note two important things.
A) Make your segments small (no more than 15-25 miles)
B) Make sure you can have visual references to ensure you are were you're supposed to be and compensate for the deviations.

In VFR conditions the short segments are stipulated by the short altitude of htese flight and distance to be covered in an event of a failure. But as failures are rare in FS you just need the short segments for orientation.

Happy flying

EHM-2127 Andrew:
Thanks for the answer guys .

Ok  the example i gave was a bad MSFS flight plan
But i  think i  understand how  to  get closer to  my  target to intercept  the VOR  at  the end of  a  Mixed heading cross over beween way points.:%.

Once i  move on to  trying the jets Then i  know Auto pilot will  be my  ever lasting friend, but on  the small twin prob planes  I  find it  more fun to  fly  without  it .

EHM-2029 Sotiris:
Hi Andrew,

I think you're getting a couple of points confused.

Intercepting a VOR radial is straightforward. Select the right frequency, enter the correct course (or radial as they call it) and then 'follow the needle'. If the needle is to the right, fly towards it. Same if the needle is to the left. Once it is centered then you're on your way.

Intersectons:
Let's work on an example using the following chart:


Let's look at intersection HAILE to the right of the Mission Bay VOR (MZB). You can see that it is the intersection of airways V186 (North to South) and V514 (West to East).

To V514 originates from the MBZ VOR with a radial (course) of 076. Hence tuning your VOR to its frequency and the correct course will put you flying along this radial.

Then do the same with your VOR2 instrument and the bottom right VOR's frequency and course (It is the blue rosette in the bottom right corner; the frequencies are not shown in this chart as it is too small but the course is shown as 336).

So by flying along V514 (as per your VOR1 readings) you can expect to reach the HAILE intersection when your VOR2 also looks centered. (i.e. you have reached the North South airway V186)

As all interesections are defined this way (hence their name) you can easily work them out by using a chart.

Also note, that on the chart you get the distances in nm (the small numbers with the arrows). This will help you calculate approximate times based on your TAS. (In calculating times/distances always use True Air Speed and not Indicated)

Let me know if you need further help.

Finally, here's another clearer chart for you to pracice on:


You can fly out of Akron Canton Airport in Ohio  (KCAK) and practice.

Navigation

[0] Message Index

[#] Next page